This is the third question on my calculus PSET

3. In the town of Lybonrehc, there has been a nuclear reactor meltdown. Fortunately, the reactor has a containment building which keeps radioactive iodine 131 from being released into the air. The containment building is hemispherical With a radius of 100 feet (the at side of the hemisphere lies on the ground). The density of iodine in the building is p(h) g/cubic feet, Where h is the height from the floor (in feet). Write an integral that gives the amount of iodine in the building